Type Any没有下标成员Swift 3.0

Question

尝试转换函数以使其与Swift 3.0兼容。必须将参数json从AnyObject更改为Any：

fileprivate func checkForAuthorizationFailure(_ json: Any) -> Bool {

        let responseMessage = json["response"]! as? String
        if responseMessage == "Unauthorized. Invalid token or email." {
            return true
        }

        return false
    }

但是在第let responseMessage = json["response"]! as? String行：我现在收到错误： “Type Any没有下标成员” 。我在这里做错了什么？

Answer 1

在使用下标之前，必须将Any转换为AnyObject。

fileprivate func checkForAuthorizationFailure(_ json: Any) -> Bool {

    let responseMessage = (json as AnyObject)["response"]! as? String
    if responseMessage == "Unauthorized. Invalid token or email." {
        return true
    }

    return false
}